Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of average values of equivalent stress. (a) Normal walking; (b) Stair climbing. Under both normal walking and stair climbing conditions, the average stress around the distal screw removal hole tended to decrease as the stem length increased.
